EP3683934A1 - Windings interconnection device - Google Patents
Windings interconnection device Download PDFInfo
- Publication number
- EP3683934A1 EP3683934A1 EP20151374.4A EP20151374A EP3683934A1 EP 3683934 A1 EP3683934 A1 EP 3683934A1 EP 20151374 A EP20151374 A EP 20151374A EP 3683934 A1 EP3683934 A1 EP 3683934A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- windings
- solid
- state electronic
- electronic switches
- interconnection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/182—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays whereby the speed is regulated by using centrifucal devices, e.g. switch, resistor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/184—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays wherein the motor speed is changed by switching from a delta to a star, e.g. wye, connection of its windings, or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/188—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays wherein the motor windings are switched from series to parallel or vice versa to control speed or torque
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
Definitions
- This description refers, as its title indicates, to a device for the interconnection of windings of the type used in electric generators, especially generator sets, to modify the characteristics of the electrical energy produced or to adapt their operation to consumption needs.
- the invention relates to the field of winding switching devices for electric generators, especially generator sets.
- Control transformer describes the switching of windings for transformers using electro-mechanical relays that continues to present the aforementioned mechanical switching problems and, what is more, it is not directly applicable to electric generators.
- the windings interconnection device that is the object of this invention has been envisaged, comprising a plurality of solid-state electronic switches, located mechanically attached on a heat sink and electrically connected to the ends of the separate windings of the electric generator in such a way that, by means of their selective opening or closing, different interconnection configurations of the said windings are generated, the opening or closing of these solid state electronic switches being controlled from a control unit that ensures that the changing of the solid state electronic switches from an open to closed state is carried out only when the electric generator is at a standstill.
- This device allows, at least, wye (Y), delta (D), parallel-wye (Y/Y) and zigzag (ZZ) configurations of the separate windings of the electric generator to be obtained, depending on the combination of solid-state electronic switches that are closed or open.
- windings interconnection device presented affords numerous advantages over currently available equipment, the most important being that it enables conventionally-used mechanical switches to be replaced by integrated electronics, which operate more reliably, prolonging the service life of the generator and notably reducing the maintenance required.
- Another important advantage is that it is not necessary to actuate a mechanical manual selector. This is carried out by means of a control signal, which prevents the configuration being changed when the generator is in operation, resulting in a notable increase in operating safety.
- Another advantage of this invention is the possibility of automatic interconnection since the control module can determine the most suitable connection without the intervention of the operator.
- an additional advantage is the increase in switching power compared to conventional mechanical switching devices.
- the windings interconnection device comprising a plurality of solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15), located mechanically attached on a heat sink (22) and electrically connected to the ends of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator, in such a way that by their selective opening or closing, different interconnection configurations of the said windings are generated, with the opening or closing of these solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15) being controlled individually by means of a bus of separate control lines (23) from a control unit (24).
- This control unit (24) can be the same control unit of the whole of the electric generator, or a separate one.
- the solid-state electronic switches can be thyristors, triacs, IGBTs, solid-state relays, etc... or any circuit based on them.
- the control unit (24) carries out the selective activation, by means of the bus of separate control lines (23), of the solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15) to obtain the required configuration as shown in Table 1, where "X” indicates the solid-state electronic switches that close in each case: Table 1 Configuration Closed solid-state electronic switch 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Wye (Y) X X X X X X Delta (D) X X X X X X X Parallel-wye (Y//Y) X X X X X X X X Zigzag (ZZ) X X X X X X X X X X X X
- Figure 2 shows the wye (Y) configuration of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator when the solid-state electronic switches (3, 7, 11, 14, 15) are closed, the rest remaining open.
- Figure 3 shows the delta (D) configuration of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator when the solid-state electronic switches (1, 3, 5, 7, 9, 11) are closed, the rest remaining open.
- Figure 4 shows the parallel-wye (Y) configuration of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator when the solid-state electronic switches (2, 4, 6, 8, 10, 12, 14, 15) are closed, the rest remaining open.
- Figure 5 shows the zigzag (ZZ) configuration of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator when the solid-state electronic switches (2, 4, 8, 9, 10, 13, 14) are closed, the rest remaining open.
Abstract
Description
- This description refers, as its title indicates, to a device for the interconnection of windings of the type used in electric generators, especially generator sets, to modify the characteristics of the electrical energy produced or to adapt their operation to consumption needs.
- The invention relates to the field of winding switching devices for electric generators, especially generator sets.
- Commonly in electric generators the windings need to be interconnected in different ways to obtain different voltage, current and power characteristics depending on the requirements. For this purpose mechanical-type, multi-contact electrical switches are often used, known as "cam switches", that are operated manually. This is described, for example, in patents
ES0164038 ES0156499 ES0245831 - Some attempts have been made to improve this, as described, for example, in
ES1028685 WO2013152910 "Control transformer" describes the switching of windings for transformers using electro-mechanical relays that continues to present the aforementioned mechanical switching problems and, what is more, it is not directly applicable to electric generators. - To resolve the current problems that exist with the switching of windings in electric generators, the windings interconnection device that is the object of this invention has been envisaged, comprising a plurality of solid-state electronic switches, located mechanically attached on a heat sink and electrically connected to the ends of the separate windings of the electric generator in such a way that, by means of their selective opening or closing, different interconnection configurations of the said windings are generated, the opening or closing of these solid state electronic switches being controlled from a control unit that ensures that the changing of the solid state electronic switches from an open to closed state is carried out only when the electric generator is at a standstill.
- This device allows, at least, wye (Y), delta (D), parallel-wye (Y/Y) and zigzag (ZZ) configurations of the separate windings of the electric generator to be obtained, depending on the combination of solid-state electronic switches that are closed or open.
- The windings interconnection device presented affords numerous advantages over currently available equipment, the most important being that it enables conventionally-used mechanical switches to be replaced by integrated electronics, which operate more reliably, prolonging the service life of the generator and notably reducing the maintenance required.
- Furthermore, it is important to highlight the considerable cost reduction obtained by eliminating conventional mechanical switches.
- Another important advantage is that it is not necessary to actuate a mechanical manual selector. This is carried out by means of a control signal, which prevents the configuration being changed when the generator is in operation, resulting in a notable increase in operating safety.
- Another advantage of this invention is the possibility of automatic interconnection since the control module can determine the most suitable connection without the intervention of the operator.
- Another of the most important advantages to be noted is that a considerable reduction in size is achieved.
- Furthermore, an additional advantage is the increase in switching power compared to conventional mechanical switching devices.
- To gain a better understanding of the object of this invention, a preferred practical embodiment of a windings interconnection device is shown in the drawing attached.
- In the said drawing, figure -1- shows a connection diagram in an example with 6 windings, with all of the solid-state electronic switches open.
- Figure -2- shows the simplified connection diagram, in an example with 6 windings, without the control elements and connections, obtaining a wye (Y) connection.
- Figure -3- shows the simplified connection diagram, in an example with 6 windings, without the control elements and connections, obtaining a delta (D) connection.
- Figure -4- shows the simplified connection diagram, in an example with 6 windings, without the control elements and connections, obtaining a parallel-wye (Y//Y) connection.
- Figure -5- shows the simplified connection diagram, in an example with 6 windings, without the control elements and connections, obtaining a zigzag (ZZ) connection.
- The conformation and characteristics of the invention can be better understood in the following description that relates to the attached figures.
- As can be seen in
figure 1 , the windings interconnection device is shown, comprising a plurality of solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15), located mechanically attached on a heat sink (22) and electrically connected to the ends of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator, in such a way that by their selective opening or closing, different interconnection configurations of the said windings are generated, with the opening or closing of these solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15) being controlled individually by means of a bus of separate control lines (23) from a control unit (24). This control unit (24) can be the same control unit of the whole of the electric generator, or a separate one. - The solid-state electronic switches can be thyristors, triacs, IGBTs, solid-state relays, etc... or any circuit based on them.
- In the example shown in
figures 1 ,2 ,3 4 and5 a preferred embodiment is illustrated in which the number of separate windings (16, 17, 18, 19, 20, 21) is 6, and the number of solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15) is 15, corresponding to an electric generator in which electric power with three phases (U, V, W) plus neutral (N) is obtained. This invention can be easily extrapolated to any different number of windings, such as for example 3, 9, 12 etc. - The change in the state of the solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15) from open to closed, and consequently the change in the configuration of the electric generator is carried out with the electric generator at a standstill.
- The control unit (24) carries out the selective activation, by means of the bus of separate control lines (23), of the solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15) to obtain the required configuration as shown in Table 1, where "X" indicates the solid-state electronic switches that close in each case:
Table 1 Configuration Closed solid-state electronic switch 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Wye (Y) X X X X X Delta (D) X X X X X X Parallel-wye (Y//Y) X X X X X X X X Zigzag (ZZ) X X X X X X X -
Figure 2 shows the wye (Y) configuration of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator when the solid-state electronic switches (3, 7, 11, 14, 15) are closed, the rest remaining open. -
Figure 3 shows the delta (D) configuration of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator when the solid-state electronic switches (1, 3, 5, 7, 9, 11) are closed, the rest remaining open. -
Figure 4 shows the parallel-wye (Y) configuration of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator when the solid-state electronic switches (2, 4, 6, 8, 10, 12, 14, 15) are closed, the rest remaining open. -
Figure 5 shows the zigzag (ZZ) configuration of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator when the solid-state electronic switches (2, 4, 8, 9, 10, 13, 14) are closed, the rest remaining open. - A technical expert will easily understand that the characteristics of different embodiments can be combined with the characteristics of other possible embodiments provided that the combination is technically possible.
- All of the information referring to examples or embodiments forms part of the description of the invention
Claims (6)
- Windings interconnection device of the type used in electric generators to modify the characteristics of the electrical energy produced, characterised in that it comprises a plurality of solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15), located mechanically attached on a heat sink (22) and electrically connected to the ends of the separate windings (16, 17, 18, 19, 20, 21) of the electric generator, that can open or close selectively to generate different interconnection configurations of the said windings, the opening or closing of these solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15) being controlled individually, by means of a bus of separate control lines (23), from a control unit (24).
- Windings interconnection device, according to the preceding claim, wherein the number of separate windings (16, 17, 18, 19, 20, 21) is 6 and the number of solid-state electronic switches (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15) is 15.
- Windings interconnection device, according to either of the previous claims, wherein the separate windings (16, 17, 18, 19, 20, 21) of the electric generator have a wye (Y) configuration when the solid-state electronic switches (3, 7, 11, 14, 15) are closed, the rest remaining open.
- Windings interconnection device, according to either of the previous claims 1 and 2, wherein the separate windings (16, 17, 18, 19, 20, 21) of the electric generator have a delta (D) configuration when the solid-state electronic switches (1, 3, 5, 7, 9, 11) are closed, the rest remaining open.
- Windings interconnection device, according to either of the previous claims 1 and 2, wherein the separate windings (16, 17, 18, 19, 20, 21) of the electric generator have a parallel-wye (Y//Y) configuration when the solid-state electronic switches (2, 4, 6, 8, 10, 12, 14, 15) are closed, the rest remaining open.
- Windings interconnection device, according to either of the previous claims 1 and 2, wherein the separate windings (16, 17, 18, 19, 20, 21) of the electric generator have a zigzag (ZZ) configuration when the solid-state electronic switches (2,4, 8, 9, 10, 13, 14) are closed, the rest remaining open.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201930073U ES1226674Y (en) | 2019-01-16 | 2019-01-16 | WINDING INTERCONNECTION DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3683934A1 true EP3683934A1 (en) | 2020-07-22 |
Family
ID=65728986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20151374.4A Pending EP3683934A1 (en) | 2019-01-16 | 2020-01-13 | Windings interconnection device |
Country Status (2)
Country | Link |
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EP (1) | EP3683934A1 (en) |
ES (1) | ES1226674Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2597801A (en) * | 2020-08-07 | 2022-02-09 | Bristol Bluegreen Ltd | An apparatus for regulating the voltage delivered to a load |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3954024A1 (en) * | 2020-06-30 | 2022-02-16 | Mirmex Motor S.A. | Array of conductors for a winding for an electrical machine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES156499U (en) | 1970-03-04 | 1970-05-01 | Querol Faus Jorge | Perfected composition game. (Machine-translation by Google Translate, not legally binding) |
ES164038U (en) | 1970-12-07 | 1971-05-16 | Ezcurra Y Cia S R C | Sliding for locks. (Machine-translation by Google Translate, not legally binding) |
ES245831U (en) | 1979-09-28 | 1980-01-16 | Finor,S.A. | Pendant (Machine-translation by Google Translate, not legally binding) |
ES1028685U (en) | 1994-07-28 | 1995-02-16 | Pulido Manuel Alvarez | Control device for starting electric motors. (Machine-translation by Google Translate, not legally binding) |
WO2008119055A1 (en) * | 2007-03-27 | 2008-10-02 | Qm Power, Inc. | Permanent magnet electro-mechanical device providing motor/generator functions |
GB2462940A (en) * | 2009-09-03 | 2010-03-03 | Protean Holdings Corp | Electric machine having controller for each coil set |
WO2013152910A1 (en) | 2012-04-10 | 2013-10-17 | Maschinenfabrik Reinhausen Gmbh | Control transformer |
WO2018213919A1 (en) * | 2017-05-23 | 2018-11-29 | Dpm Technologies Inc. | Variable coil configuration system control, apparatus and method |
-
2019
- 2019-01-16 ES ES201930073U patent/ES1226674Y/en active Active
-
2020
- 2020-01-13 EP EP20151374.4A patent/EP3683934A1/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES156499U (en) | 1970-03-04 | 1970-05-01 | Querol Faus Jorge | Perfected composition game. (Machine-translation by Google Translate, not legally binding) |
ES164038U (en) | 1970-12-07 | 1971-05-16 | Ezcurra Y Cia S R C | Sliding for locks. (Machine-translation by Google Translate, not legally binding) |
ES245831U (en) | 1979-09-28 | 1980-01-16 | Finor,S.A. | Pendant (Machine-translation by Google Translate, not legally binding) |
ES1028685U (en) | 1994-07-28 | 1995-02-16 | Pulido Manuel Alvarez | Control device for starting electric motors. (Machine-translation by Google Translate, not legally binding) |
WO2008119055A1 (en) * | 2007-03-27 | 2008-10-02 | Qm Power, Inc. | Permanent magnet electro-mechanical device providing motor/generator functions |
GB2462940A (en) * | 2009-09-03 | 2010-03-03 | Protean Holdings Corp | Electric machine having controller for each coil set |
WO2013152910A1 (en) | 2012-04-10 | 2013-10-17 | Maschinenfabrik Reinhausen Gmbh | Control transformer |
WO2018213919A1 (en) * | 2017-05-23 | 2018-11-29 | Dpm Technologies Inc. | Variable coil configuration system control, apparatus and method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2597801A (en) * | 2020-08-07 | 2022-02-09 | Bristol Bluegreen Ltd | An apparatus for regulating the voltage delivered to a load |
Also Published As
Publication number | Publication date |
---|---|
ES1226674U (en) | 2019-03-19 |
ES1226674Y (en) | 2019-06-10 |
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